Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes

Chapter 26: Choking Play

“…I’m home.”

I quietly open the front door.

After eating dinner with Kirino-san, it’s already past 22:00 when I get home.

Kirino-san’s face while eating Indian curry was something else.

Her bitter smile while struggling with the spice would make any guy want to take her home right then.

For me, since I want to be the one taken home, it’s a shame I didn’t get that thrill.

“…”

I tiptoe toward the stairs.

The living room light is still on.

Since tomorrow’s a holiday, everyone’s probably still awake at 22:00.

If I can just slip upstairs unnoticed…

“You’re back pretty late, Kiyoto.”

So close…

Rinka’s voice is like a signal, and the hallway light turns on.

I didn’t notice in the dark, but Rinka’s standing in front of the stairs, waiting.

Ugh, her eyes are totally back to whip mode.

Give me more candy, please.

“So, do you know what time it is?”

“Uh, 22:00…”

“Exactly. Past 22:00, right?”

This formal-talking Rinka is bad news.

“You said this morning you didn’t need dinner, and I agreed. So, not coming back at your usual time makes sense.”

At least she gets that part.

“But coming home at 22:00… don’t you think that’s a bit unreasonable?”

“…I don’t think so.”

No way I’d think that!

But I’m not brave enough to say it out loud.

“Fine. Coming home at 22:00 just means you lack common sense.”

Can you stop agreeing with that weird logic?

It’s scarier that way.

“But.”

“Huh? Whoa!?”

Of course, she grabs my neck and slams me against the hallway wall.

What’s this? Is she my favorite kind of DV girl?

“Lying to me isn’t just a small issue!”

Rinka’s grip on my neck isn’t tight enough to choke, but it’s not weak enough to shake off easily.

No escape.

“L-lying about what?”

She’s gone this far, so she obviously knows I was out with Kirino-san, but who could admit that in this situation!?

“I asked you today. You weren’t going out to have fun with that girl, right? You said she wasn’t free enough to hang out with you.”

Now that she mentions it, I did say something like that.

“Then why do your clothes smell like her perfume?”

“Perfume?”

I didn’t even know Kirino-san was wearing perfume.

“That girl’s the ace of our school’s track team, right? So, she’d sweat a bit. It’s not surprising she’d wear light perfume to cover it. I noticed a faint perfume smell from her during our joint PE class before.”

Whoa, hold on…//

Don’t talk about my kind of thing right now!//

“Why’s your face turning red?”

“It’s not!”

I stop my daydreaming immediately.

“Back to the point. Why do your clothes smell like her perfume?”

“W-Well, we just studied together…”

At this point, I might as well admit it.

Maybe if I do, Rinka’s anger will cool down, like in those cliché scenarios.

“!?”

Now she pulls me toward her, still gripping my neck.

“I see. You’ve done something incredibly foolish.”

As she speaks, her grip on my neck tightens.

“Guh…!”

This is totally choking now!

Is this that choking play thing!?

Her face looks like those sadistic ones in doujinshi.

“I decided to give you candy. That’s why I allowed you to go out today.”

It hurts, it hurts!

This isn’t thrilling anymore.

“But this is the result. You lied to me and gave yourself to that ominous girl.”

Gave myself to her… we haven’t gone that far!//

“It seems you didn’t need candy after all. But giving you only whips won’t make you feel my love either.”

It feels like she’s confessing something huge, but my neck hurts too much to care.

“First, I’ll make you ‘pass out.’”

Pass out from choking!?

That could kill me!?

“Don’t worry, when you wake up, I’ll feed you candy mouth-to-mouth.”

That metaphor is super intriguing, but… my consciousness is fading…

My vision blurs, and my mind goes blank.

“Sis! What are you doing!?”

Just as I’m about to lose consciousness, Ayuka’s voice comes from the living room.

—

Chapter 27: Rinka vs. Ayuka

“Sis, what are you doing!?”

I thought I heard Ayuka’s voice…

“Don’t talk to me now, Ayuka. I don’t have time for you.”

Oh, that wasn’t a hallucination—it was really Ayuka’s voice.

As I register her voice, my fading consciousness slowly starts to come back.

“Just let go of him!”

Ayuka grabs Rinka’s hand.

“I told you not to interfere!!”

“Eek!?”

Rinka releases my neck and shoves Ayuka.

As a result, Ayuka crashes into the living room door.

“Ayuka! Are you oka—!?”

I try to rush to Ayuka, but Rinka’s hand grips my neck again.

“Focus only on me right now.”

Rinka’s eyes are still cold.

She’s not excited—just calmly calculating how long it’ll take me to pass out.

“Ayuka-nee!? Are you okay!?”

Hearing the crash, Fuzuha comes out of the living room and runs to Ayuka.

“I-I’m fine… Stop Rinka-nee-san.”

Despite taking a lot of damage, Ayuka stands up.

“Onii-chan!? Rinka-nee, why are you choking Onii-chan?”

“Oh, Fuzuha. I’m just about to show Kiyoto some love. This is part of it.”

Unlike with Ayuka, she speaks gently to Fuzuha.

“You’ve finally lostხ

System: lost it.

“You’ve finally lost it,” Ayuka says, glaring with contempt.

“Lost it? I’m perfectly sane. Or what? Do you want me to shower you with love too? Sorry, I’m only human. I love you all as family, but compared to Kiyoto, you fall short.”

I’m terrified by Rinka’s endless stamina, talking so calmly while gripping my neck so hard.

Sure, she’s been doing kendo since she was little and has a strong build, but where did she get this strength?

There’s no way I could beat her.

Even if all my old “comrades” teamed up, I doubt we’d win.

Though, they’d probably find that thrilling.

“Fuzuha, got anything that could be a weapon?”

“Huh? A weapon?”

“You get it, right? Even both of us together can’t stop Rinka-nee-san right now. We need a weapon.”

“Got it… I’ll check the kitchen.”

Ayuka’s saying some pretty dangerous stuff.

A weapon? From the kitchen?

She’s not bringing a knife, right…

“Found something good!”

Fuzuha comes back quick.

And in her hands… is that a cutting board?

A wooden cutting board…

“…Honestly, I wanted something better, but it’s better than nothing,” Ayuka says.

Something better? Did Ayuka actually want a knife?

“Still, a cutting board… Heh, it suits Rinka-nee-san perfectly,” Ayuka says with a mocking grin.

I feel the grip on my neck loosen a bit.

“What’s that supposed to mean?” Rinka asks, her eyes now piercing Ayuka.

…Ayuka, you stepped on a landmine.

“Just what I said. Your chest is flatter than mine and Fuzuha’s. So, ‘cutting board’ fits you perfectly.”

“…That’s quite an interesting point.”

Rinka lets go of my neck.

Cough! Cough!

“Onii-chan!”

Fuzuha rushes to me.

“Lately, you’ve been defying me a lot, Ayuka. Is this what they call a rebellious phase?”

“Yeah, exactly. I’m tired of being bossed around by someone with a flatter chest than me.”

Ayuka’s chest jab is working!?

Sure, Rinka’s chest is the smallest among the girls close to me.

I never brought it up before, and I thought Rinka’s personality would brush it off as silly if I did.

“Looks like I need to discipline my foolish sister before showing Kiyoto my love.”

In an instant, Rinka closes the distance to Ayuka and reaches for her neck.

She really loves choking play, huh.

“Ugh!”

Ayuka barely blocks it with the cutting board.

The scene: Ayuka holding the cutting board with both hands to protect her face and neck, and Rinka gripping the top edge with one hand, trying to force it to the floor.

Rinka’s strength right now must be insane.

It’s amazing Ayuka’s holding up against it.

But—

“!?”

Rinka’s grip is so strong, the cutting board starts to crack.

…Is that even possible?

At this point, it’s like she’s a gor—never mind.

“Fuzuha, grab a knife from the kitchen!”

“O-Okay, got it!”

What are you saying!?

And Fuzuha, why are you actually going!?

At this rate…